Doctor profile · Federal record
Dr. Kenechukwu Chudy-Onwugaje, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Belleville, IL
- NPI 1861749780
- Accepts Medicare
- 17 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
4500 Memorial Dr
Belleville, IL 622265360
(618) 257-6220 - Additional location
-
3 Saint Elizabeth Blvd Ste 5000
O Fallon, IL 622691282
(618) 641-5803
fax (618) 607-5116 - Additional location
-
404 Lincoln Dr
Herrin, IL 629483789
(618) 993-0056
fax (618) 993-0752 - Additional location
-
145 W 23Rd St Ste 101
Erie, PA 165022858
(814) 452-2767
fax (814) 459-2976 - Additional location
-
22 S Greene St, N3W 156
Baltimore, MD 212011544
(410) 328-8318
Show 2 more locations
Credentials & registration
- NPI registered
- August 2012 — 14 yrs on file
- Profile last updated
- January 29, 2026
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (3)
- Illinois #036156635 · Maryland #D0080835 · Pennsylvania #MD469735
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861749780. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
664
Distinct HCPCS
10
Medicare allowed
$66,545
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 232 | 150 | $49 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 227 | 223 | $129 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 71 | 71 | $110 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 38 | 38 | $113 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 27 | 27 | $174 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 18 | 17 | $79 | |
43264 |
Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | 14 | 13 | $270 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 13 | 13 | $200 | |
43262 |
Incision of pancreatic outlet using a flexible endoscope | 12 | 12 | $62 | |
45330 |
Diagnostic exam of lower portion of large bowel using a flexible endoscope | 12 | 11 | $41 |
In context: peer comparison
Among 3 peers in Belleville Gastroenterology Physician, average services per provider: 140. This provider delivers 4.7× the peer median.Open Payments
Industry payments received
All-time total
$210
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 2 | $210.20 |
By nature of payment
Frequently asked questions
What is Dr. Kenechukwu Chudy-Onwugaje's medical specialty?
Dr. Kenechukwu Chudy-Onwugaje practices Gastroenterology Physician in Belleville, IL.
Where does Dr. Kenechukwu Chudy-Onwugaje practice?
Dr. Kenechukwu Chudy-Onwugaje practices at 4500 Memorial Dr, Belleville, IL 622265360. Office phone: 6182576220.
What is Dr. Kenechukwu Chudy-Onwugaje's NPI?
Dr. Kenechukwu Chudy-Onwugaje's National Provider Identifier (NPI) is 1861749780, issued by NPPES.
Does Dr. Kenechukwu Chudy-Onwugaje accept Medicare assignment?
Yes. Dr. Kenechukwu Chudy-Onwugaje accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kenechukwu Chudy-Onwugaje commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.